KH

Kunizo Hiraoka

Overall (All Time): #1,303,952 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4722422 Emergency escape apparatus — 1988-02-02
4451222 Apparatus for producing concrete pipes — 1984-05-29
4360331 Apparatus for molding a concrete pipe — 1982-11-23
4311632 Process for molding a concrete pipe — 1982-01-19